Planet Money

When it comes to solar and wind power, renewable energy has always had a caveat: it can only run when the wind blows or the sun shines.The idea of a battery was floated around to make renewables available 24/7. For years, it existed as an expensive, little-used technology. Then in 2021, it took off.In this episode, we explore how this new energy market works in two states: California and Texas.In California, there is now enough grid-scale battery storage to power millions of homes — at least for a few hours — and it's growing fast. What does this success mean for the grid, and how did the state support it?Then, we visit Texas, whose approach is more free-market rodeo. The state has the second-most battery storage capacity in the U.S. And in Texas, their system was recently put to the test. So, can these large-scale batteries can help prevent blackouts?These two stories come from our sister show The Indicator, which recently reported a series about the electric battery market.Today's show was hosted by Cooper